Gage for gutter-heads



(Model.)

S.. J. SHIMER.

GAGE FOR GUTTBR HEADS.

No. 319,751. lPatented June 9, 1885.

.dttarney UNITED STATES PATENT OFFIci-Jo SAMUEL J. SHIMER, OF MILTON,PENNSYLVANIA.

GAGE FOR CUTTER-HEADS.

SPCIPICATION forming part of Letters Patent No. 319,751, dated June 9,1885.

Application filed April 13, 1885. (Model.)

To all whom it may concern:

Be it known that I, SAMUEL J. SHIMER, a citizen of the United States ofAmerica, residing at Milton, in the county of Northulnberland, in theState of Pennsylvania, have invented a new and useful Gage for Outter-Heads, of which the following is a specification.

My invention relates to inlprovements in means for adjusting the bits orcutters of a cutter-head in either a lateral or a Vertical direction;and it consists in providing the cutter-head with pin-holes in thebottom arranged at an angle Vertical With the beveled face of the head,and in a gage provided with dowel-pins in the shank arranged to setwithin the pin-holes of the cutter-head and having on its graduatedblade lines to indicate ineasurements.

In the accompanying drawings, forrning a part of this specification, Ihave fully illustrated my invention, and reference being had thereto. p

Figure 1 represents a side view of a cutter-head having a bit securedtherein and my improved gage applied to set the projection and elevationof the bit. Fig. 2 is a bottom view of the cutter-head, showing thepinholes formed therein and the shank of the gage arranged in one of thesets of holes and Fig. 3 is a view of my improved gage.

In the drawings like parts are identified by the same letters ofreference.

' The letter A represents the cutter-head having adjusted therein andsecured in operative position a bit or cutter, B.

The head shown in the drawings is of rectangular type, and of theimproved make having the clainp-slots wholly within the planes of thesides and without the Vertical axial line of the hub.

The letter O represents the Vertical slots in the sides of thecutter-head, to which are fitted the bit-clamps D, which in turn graspand hold the bits or cutters B. In the bottom of the cutter -head arepinholes a and a', arranged therein on the same relative direction asthe bevel-line of the head of the cutter, and so as that, when the gageis set in position, the face of the blade shall set against the beveledsurface of the bit, as shown in Figs. 1 and 2 of the drawings. I haveshown pin-holes as arranged at the base and to the side of the slots, asaffording the most convenient position in the material and for theadjustment of the gage to the bit.

I make no claim to the cutter-head in this application, the same beingthe subject of another application for patent filed by me under date ofApril 13, 1885, and bearing Serial No. 162,116.

The letter E represents my improved gage, which consists of a blade, b,and shank O set at right angles to each other. The blade is providedwith a scale of linear nieasurements, e, in the usual manner, and alsohas parallel lines (i, indicated at right angles to the linearmeasnreinents. th'e adj ustment of the Vertical position of the cutteror bit, and the lattcr serve to set the projection of the bladeiulongitudinal direction. The shank .c of the gage is provided Withprojecting pins f f', securely fixed in the inner face thereof, andarranged to accurately set within the pin-holes fornied in the bottom ofthe cutter-head, the purpose being that the pins of the shank of thegage being set in the pin-holes of the cutter-head the blade shall reachbeyond the side of the head and be brought with the flat side againstthe beveled point of the cutterbit. The gage is applied by setting thepins of the shank in the pin-holes of the cutter-head, and the point ofthe blade is set in the desired projection by bringing it in line withone of the lines on the blade of the gage, and then the bit is run up ordown to the desired line of the linear gage on the blade when the clampsare screwed up and the bit set in position. After adjusting one of thebits in this manner the remainiug bits, or a certain series, np-

per or lower, can be readily and accurately,

set to the same position.

What I clailn as my invention, and desire to secure by Letters Patent,is-

As a new article of manufacture, the cutter-head gage herein describedconsisting of the gage E, formed of the blade b, having graduatedmeasurements indicated thereon, and the shank O, provided withprojecting pins f f', snbstantially as described.

In testimony whereof I have hereunto setV my hand in the presence of twoattesting witnesses.

` SAMUEL J. SHIMER.

Attest:

ELMER S. SHIMER, W. H. BECK.

The former serve to measure` IOO

